Answer:
C. 1 / (a(a - 1))
Step-by-step explanation:
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Just know that:
n! = n(n-1)!
= n(n-1)(n-2)!
= n(n-1)(n-2)(n-3)!
= ...
A- 53
B- 53
C- 127
D- 54
E- E+20
F- 59
Answer:
64
Step-by-step explanation:
I did 90-26 I hope that’s what you’re looking for :))
Answer: it’s 1/5
Step-by-step explanation: